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add a malloc() check

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mostly a sanity measure to be future-proof

Change-Id: I55a81345819b2a8e939c98f0da883dc5c0cc16a2
This commit is contained in:
Pascal Massimino 2012-07-16 19:15:00 -07:00
parent 8130c4cc64
commit 2d571bd89f
1 changed files with 15 additions and 5 deletions
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12
src/dec/vp8l.c
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@ -890,12 +890,22 @@ static int DecodeImageStream(int xsize, int ysize,
goto End; goto End;
} }
data = (uint32_t*)malloc(transform_xsize * transform_ysize * sizeof(*data)); {
const uint64_t total_size =
transform_xsize * transform_ysize * sizeof(*data);
if (total_size != (size_t)total_size) {
// This shouldn't happen, because of transform_bits limit, but...
dec->status_ = VP8_STATUS_BITSTREAM_ERROR;
ok = 0;
goto End;
}
data = (uint32_t*)malloc((size_t)total_size);
if (data == NULL) { if (data == NULL) {
dec->status_ = VP8_STATUS_OUT_OF_MEMORY; dec->status_ = VP8_STATUS_OUT_OF_MEMORY;
ok = 0; ok = 0;
goto End; goto End;
} }
}
// Use the Huffman trees to decode the LZ77 encoded data. // Use the Huffman trees to decode the LZ77 encoded data.
ok = DecodeImageData(dec, data, transform_xsize, transform_ysize, NULL); ok = DecodeImageData(dec, data, transform_xsize, transform_ysize, NULL);